Diagnostic Software for VW-Audi Group Cars

 
881 Sumneytown Pike, Lansdale PA 19446, USA

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                    Xenon Headlamp Adjustment

Xenon Headlamp Adjustment
Updated  03 Oct. 2007

Ross-Tech is not responsible for any damage or problems that may result from following these instructions. They are to be used at your own risk. As always, you should refer to a Factory Repair Manual for your vehicle!

This procedure applies only to older Xenon systems that use KW-1281. Procedures for specific vehicles, including newer cars that use KWP-2000 or CAN systems can be found in the Ross-Tech wiki.

This procedure details how to perform a Xenon Headlamp Adjustment on many VW/Audi vehicles equipped with Xenons (HID's). This procedure cycles the motorized headlamp adjusters to their center position so that the beams can be adjusted. This does NOT align the headlamps by itself. You still need to manually adjust the headlamps via the adjusting screws as referenced against a suitable aiming target.

If this procedure is only partially performed, there may be a DTC stored in the Xenon Range memory indicating "Headlights not adjusted". To clear this, you need to complete the entire procedure.

There are certain test conditions that must be met before doing this procedure:

  • Vehicle must be parked on level ground and "settled" on its suspension

  • Parking brake should be OFF

  • Ignition should be in the "On" position

  • Headlamps should be "Off"


Procedure for Aligning Xenon Headlamps:

[Select]
[55 - Xenon Range] (For some newer vehicles,  use [29 - Left Light] instead )
[Basic Settings - 04]
Group 001
[Go!]

Wait at least 20 seconds for the headlamp motors to move. The headlamps are now in their adjustment position. Turn on headlights. Adjust them via their manual adjusting screws as referenced against a suitable aiming target.

Scroll up to Group 002. The Xenon Range controller has now learned this position as its Home position.

Click the [Done, Go Back] button and you're all set.

Note: There have been reports of lowered vehicles displaying an error message in either Basic Settings group 001 or 002. If the vehicle height sensor(s) are bottomed out, it may be necessary to bend the sensor bracket to allow normal adjustment to occur. Also, check to make sure that the sensor arms do not have their pivots facing the wrong direction as shown in this thread: http://forums.vwvortex.com/zerothread?id=2383036


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                    Xenon Headlamp Adjustment